Originally Posted by
AUS2008
As opposed to PDX, where one can pour the liquids into a common bin.
Actually, that *is* quite dangerous. For instance, ammonia (not dangerous) + bleach (not dangerous) = anything from poison gas to an explosive.
Under no circumstances should liquids all be poured together in a common bin. I can think of dozens of individually safe chemicals that combined would pretty much wipe out the CP.